Automobile window ventilator control



. Patented Apr. 30.1940 v UNITED s'iA'iEs AUTOMOBILE VENTEATOE- George W. Chandler,

swine. Peabody, and Daniei r. Salem. Mala, aosignors to Assess Company Inc., Salem, Man. a corporation of Massachusetts Application January as, me, some No. arenas Claims.

Our improved ventilator comprising our disclosure hereinafter set forth relates to ventilators, and more particularly toautomobile door ventilators.

5 -In our-present ventilator, we have disclosed a new method of operation together with new apparatus for accomplishing the desired results.

In modern automobile ventilation. it has long been desired to withdraw the air from the interior of the. automobile to the outside with a' may be rotated from right 'to left so that the air I may be directed to the interior of the vehicleor withdrawn from same by simply turning the ventilator to the right or the left;

Another object of our invention is an improved apparatus for rotating the ventilator to right and 4 left to obtain the above desired results, and

Other objects and novel features comprising the construction and operation of our invention will appear as the description of the same progreases.

o ,In the drawingsiliustrating the preferred embodiment of our invention, Fig. 1 illustrates the upper portion of an automobile door with our apparatus attached.

Fig. 2 is a fragmentary cross-section taken on 35 the'iiiie 1-2 of Fig. 1 showing the ventilator in a closed position;

Fig. 3 is a fragmentary cross-section taken on the line 3-3 of Fig. 1 showing the lower pivot end of the ventilator in the automobile door;

40 Fig. 4 is a typical fragmentary cross-section taken through the upper portion of an automobile door in a .closed position with the automobile top portion, the section being taken to i the rear of the ventilator mechanism and par- 45 ticularly showing the position of the ventilator control lever with respect to the top of the door frame and the automobile top:

Fig. 5 is a plan view of the control mechanism removed from the door;

Fig. 6 is a side elevation of the control mechanism, as viewed from the outside portion of the door; I

Fig. 'i is a plan cross-section taken on the line 1 1-1 of Fig. 6;

Fig. 8 is another plan cross-section taken on the line 8-8 of Fig. 6, the end portions being broken away for convenience;

Fig. 9 is the opposite side elevation from that shown in Fig. 6, the ventilator blade being broken go away for convenience;

on the line Ill-ill of Fig. 9, and

- the line ll-ii of Fig. 6. v Referring more in detail to the drawings, and 3 Fig. 10 is a detail vertieal cross-section ta hen Fig. 11 is a fragmentary crosstion taken on especially Figs. 1 to 4 inclusive, it indicates an automobile door. The lowerportion of the door it has been broken away for convenience as it is not concerned with the present invention. ii is the glass window pane of the door in a partially 1o raised position and which operates in the door frame slot ii in the conventional manner.

In the front curved portion of the door and.

window frame is located the ventilator blade it which is preferably composed of plateglass and is is supported at each end by the brackets l4 and id. 'I'he'lower bracket l5 may-be formed in one piece with the pivot shaft it which is pivoted in the boss l'l formed on the window ledge of the door, better shown in Fig. 4. 4

The upper end of the blade ll is clamped in .the bracket M, the upper end of which comprises a pivot stem it, better shownin Figs. 6 and ii.

In Fig. 2 we have shown an enlarged scale drawing of the ventilator blade I! in combina- 95 tion with a portion of the window frame portion of the door Ill. when the blade I! is closed as shown in Fig. 2, the inner front edge bears against a stop strip is which is secured to the 1 window opening by the screws II, or by any other so convenient means. The dot-and-dash' lines indicate various intermediate positions toowhich the .blade may be turned to for the purpose of ventilation. In the position indicated by the arrows II, the air is directed-into the vehicle when in motion. When the blade is turned to the position indicated by the arrow 22 the air stream is deflected away from the windowithereby setting up an area of lowpressure at this point and withdrawing air fromthe interior of 40 the vehicle. I

The control mechanism is generally indicated at 23 in Fig. 1 and shown in detail in Figs. 5 to 11 inclusive. The actuating lever 24, shown in Fig.

4, projects slightly into the interior of the vehicle when released.

Referring more in detail to the control mechanism 13, as shown in Figs.=5 to 11 inclusive, a casting member flaupon which the apparatus 'is mounted is attached tosuitable anchor members located within the casing of the door frame by means of screws which are adapted to fit in the threaded holes 25. The lower forward corner of the casting 24a comprises aboss 28. The central pivot bearing of the boss 26 is located at an angle of approximately forty-five degrees to the horizontal axis of the casting 24a and is adapted" to receive the stem I8 01' the upper blade bracket. The upper end of the stem I8 is provided with a bevel gear 2'! which is secured to it by a set screw 28. Around the hub portion of the gear 21 we have placed a band 28 the ends of which are anchored to the casting 24a by means of ascrew 38 the threaded end of which is threaded through one end of the band 29 so that the band maybe tightened up or slacked on, as the case may be, thereby providing a friction member for the gear 21 which prevents the blade l3 from rattling or vibrating due to backlash in the control mechanism.

In approximately the central portion of the casting 24a. we have placed a vertical shaft 3| which is pivoted in the lower portion of the casting and on which is either keyed, set-screwed or both, another bevel gear 32. The gear 32 is provided with a long boss 33 extending upwardly to the under side of the top portion of the casting 24a and is further provided adjacent its top with a stop shoulder 34. Pins 35 are mounted in the casting 24a and adapted to limitthe rotation of the gear'32, as shown in Fig. 7.

On the upper face of the casting 24a are provided at each end bosses 36 to which is fixed by the screws 31, a top plate 38. Between the top plate 38 and the top of the casting 24a is located a ratchet'mechanism comprising a lower member 38 and an upper member-4|l both of which are rotatably mounted on the upper portion of the gear shaft 3|, the upper member 40 being either integral with or otherwise securely fixed to the lever 24 which actuates the control mechanism from the interior of the vehicle. The upper member 48 and lower member 39 are pinned together at their ends by the shouldered pins 4| around which are positioned pawl mem- Y bers 42. Surrounding the shaft 3| and keyed thereto is a ratchet wheel 43 which is adapted to engage with the pawls 42. The pawls 42 are provided with pins 44 against which the common spring 45 bears for the purpose of keeping the pawls in engagement with the teeth of the ratchet wheel 43. The spring 45 is held in a groove in the face of the top member being held in place by the pin 48. i

The top plate 38 is provided with cam faces 41 which are adapted to engage the pawl pins 44 so that when the lever 24 is thrown to, the right the right-hand pawl engages the teeth of the ratchet wheel 43 and the left-hand pawl moves out of contact with the teeth on the other side of the ratchet wheel.- Due to the fact that the ratchet wheel 43 is keyed to the shaft 3|, the

gears 32 and 21 are operated and the ventilator blade I3 is pivoted around until the stop member 35 on the gear boss 33 engages one of the pins 35. A reverse movement of the lever 24 reverses the movement of the blade l3.

Springs 48 are anchored on the upper side of the casting 24a and bear against the sides of the member 38 being held in a normal position by the pins 43. When the lever is released from either a forward or rearward movement, the springs 48 automatically return the lever 24 and whole unit which is pivoted around the upper end of the shaft 3| to the central neutral position, as shown in the drawings but the ratchet wheel and gears remain in the position attained at the end of the forward or rearward movement of the lever 24.

a drive shaft connecting the upper end of said wing and a bevel gear, a second bevel gear meshed with said first gear, .a swivel unit rotatably mounted around said drive shaft, a ratchet wheel located in said swivel unit and keyed to said shaft, pawls pivoted in said swivel unit and adapted to engage with said ratchet wheel, cams located, on said swivel unit adapted to engage with said pawls, self centering springs attached to said swivel unit and engaging said swivel member and being adapted to return said swivel unity'to a normal goperating position. after'said swivelunithas beenoperated to the right or left, an operating lever connected to said swivel member and projecting horizontally within the inside of said win'dowand adapted to operate in a horizontal plane. i

2. Iiia ventilator for automobile doors having a blade pivoted in the frame of. said door adjacent the window opening,- a'pivoted ratchet unit adapted to drive said blade, the'said ratchet unit having an operating lever extending from the inside of the top of saidfidoor frame and adapted to move'in a horizontal plane, meansfor self centering said lever comprising compression springs located on eitherside of said lever within said door frame, a friction member attached to the drive end of. said blade adapted to prevent said blade'from movement when not acted upon bysaid lever.

4. In an improved obliquely'mounted ventilator blade mechanism mounted in the window frame of an automobile door, horizontally pivoted ratchet lever operating 'means connecting said blade, said lever means being located at the top inside of the frame and having self centering means fixed in the frame 'of said door and adapted to return said lever to a normal operating position when in a free position.

5. In a'control apparatus for rotating a pivoted ventilator in the window opening of an automobile door comprising a pivoted ratchet member extending within said automobile from the top side of the frame of said door, said ratchet member adapted to swing'in ahorizontal plane and having a self returning normal position point operated from balanced springs engaging each side of said ratchet member with respect to pivoted center of said ratchet member, said ratchet member being attached to a ventilator blade mounted in said window opening.

DANIEL-1 CHANDLER. GEORGE w. EWING. 

